Camera



C. F. SMITH Jan. 19 1926.

CAMERA Original Filed June 4, 1924 INVENTOR:

CHARLES FREDERICK SMITH By his At/Bgneys, Mk

Patented Jan. 19, 1926.

CHARLES FREDERECK SMITH, OF LUNDON, ENGLAND, ASSIGIQ'UB T0 ADAM EIILGER,

LIMITED, OF LONDON, ENGLAND.

CAMERA.

Original application filed June 4, 1924, Serial No. 717,706. Divided and this application filed February To all whom it may concern:

Be it known that 1, CHARLES FREDERICK SMITH, a subject of the King of Great Britain, residing at 75 Camden Road, London, England, have invented new and useful Improvements in Cameras, oi which the following is a specification.

This application is a division of my application for patent filed June 4-, 19A, No. 717,706.

This invention relates to cameras pticularly adapted for use in taking the negatives when the invention described. in my concurrent application is applied to scenic effects.

According to this invention a camera consists of a photographic plate holder having circular openings; the plate holder is carried and covered by a light-tight disk and rotatably mounted on a pivot on the disk. On the disk is an eccentric boss rotatably mounted in a bracket and a positive lens is eccentrically mounted in the boss. The plate holder is attached to the bracket by two pivoted links to allow it to move when the disk is turned; The distance between the centre of the disk and the axis of the lens depends on the size oi the photographic plates used in the camera and in the projector, that is the magnification. The distance between the centre or" the boss and the axis of the lens depends on the relative size of the model scene and the theatre. Vi hen the disk is turned the plate holder will successively take up a number of positions in a circle with regard to the lens so that a number of positive photographs of part of the scene can be taken upon the plate, and on the disk are a number or notches coirsponding to the position of the plate with regard to the lens. A catch is provided which enters the notches and holds the disk stationary while the photograph is being taken. It will be understood that the number and relative positions of the pictures taken by the camera correspond with the number and positions of the lenses of the projector.

The bracket may be slidably mounted upon a graduated upright and may also be mounted so that it can be turned to tilt the plate, a scale being provided to indicate the angle through which the bracket has turned.

Serial No. 9,494.

The accompanying drawings illustrate a camera made in accordance with this invention. Figr e l is a front elevation and Figure is rtical section whilst Figure 3 is a similar view to igure 1 with the parts in a different position.

is a holder having seven circular openings and is carried and covered by a light-tightdisl: 26, the plate holder being rotatahly mounted on a pivot 27 on the disk 26 and a 261 on the disk 26 extends into a groove in the plate holder On the disk 26 is an eccentric boss 28 rotatably mounted in bracket 29 and in the boss positive lens 30. The plate holder 25 is attached to the bracket 29 by two links 31 which allow it to move. When the disk is turned the lens 30 will successively take up number of positions in a circle on a photographic plate 32 mounted in the plate holder 25. The position of the plate holder and the disk 96 after the picture has been taken and the plate holder turned is shown in Figure 3.

In camera having a plate holder with seven openings the disk is turned at each movement through fill-$ on the axis of the boss 28 carrying the plate holder with it, so presenting a Iresh surface to the lens.

In the disk 26 is a number of notches corresponding to the positions of the lens and a catch 33 is provioed on the pin holder 25 which successively enters the notches and locks the disk and plate holder while a photograph is being taken.

The bracket 29 is slidably mounted upon an upright 34; on which it is retained in any position by screws 35 and the upright is graduated as shown. The bracket is constructed in two parts held together by a thumb screw so that the plate holder may he tilted and a scale is provided to indicate the angle through which the part of the bracket carrying the plate holder is turned.

il hat l claim is 1. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, a lens in the boss and means for causing the pivot of the disk to more in a circle.

2. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, a lens eccentrically mounted in the boss and means for causing the pivot of the disk to move in a circle.

3. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, a lens in the boss, the distance between the centre of the disk and the centre of the lens bearing a definite ratio to the magnification employed, and means for causing the pivot of the disk to move in a circle.

4. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, a lens eccentrically mounted in the boss, the distance between the centre of the disk and the centre of the lens bearing a definite ratio to the magnification employed, and means for causing the pivot of the disk to move in circle.

5. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, lens in the boss, the distance between the centre of the boss and the axis of the lens bearing a definite ratio to the relative size of the model scene and the theatre, and means for causing the pivot of the disk to move in a circle.

6. A camera comprising a plate holder, a pivot on the plate holder, a disk rotatably mounted on the pivot, an eccentric boss on the disk, a lens eccentrically mounted in the boss, the distance between the centre of the boss and the axis of the lens bearing a definite ratio to the relative size of the model scene and the theatre, and means for causin; the pivot of the disk to move in a circle.

7. A bracket carrying a camera comprising a plate holder, a disk rotatably connected with the plate holder, an eccentric boss on the disk mounted in the bracket. a lens in the boss and two pivoted links connecting the plate holder to the bracket.

In testimony that I claim the foregoing as my invention I have signed my name this 27th day of January, 1925.

CHARLES FREDERICK SMITH. 

